The random variable X represents the number of siblings of a student selected randomly from a particular college. Use random variable notation to express the following statement in shorthand. The probability that the student has two siblings is $0.18$.
A)$\mathrm { P } ( \mathrm { X } = 2 ) = 0.18$
B) $P ( X ) = 0.18$
C) $\mathrm { P } ( 2 ) = 0.18$
D) $( X = 2 ) =$

Question

The random variable X represents the number of siblings of a student selected randomly from a particular college. Use random variable notation to express the following statement in shorthand. The probability that the student has two siblings is $0.18$.  
A)$\mathrm { P } ( \mathrm { X } = 2 ) = 0.18$
B) $P ( X ) = 0.18$
C) $\mathrm { P } ( 2 ) = 0.18$
D) $( X = 2 ) =$

Quizplus · Accepted Answer

A) correctly uses random variable notation to express the probability that the selected student has exactly two siblings as $0.18$.

The Random Variable X Represents the Number of Siblings of a Student